Trolley



G. B. NUSSBAUM.

TROLLEY.

APPLICATION FILED BECA, 1920.

n 1,378,554- Y Patented May17,1921.

GEORGE B. NUssBAUivi, OE NEW PHILADELPHIA, OHIO.

TROLLEY.

v Specification of Letters Patent.

Application led December 1, 1920. Serial No. 427,532.

' designed more especially as an improvement upon Patent No. 849,262, issued to me on April 2, 1907.

One of the objects of the invention is to provide a trolley wheel so mounted relative to the harp that it will follow curvatures in the wire and will always automatically adjust itself to normal position.

A further object is to provide a trolley having a guard of novel form for preventing cross or stay wires from entering between the wheel and harp should the trolley jump from the trolley wire.

Another obj ect is to provide a trolley having a signal lamp connected thereto.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the com-v bination and arrangement of partsv and in the details of construction hereinafter described and claimed, it being understood that, within the scope of what is claimed, changes in the precise embodiment of the invention shown can be made without .de-I

parting from the spiiit of the invention.

In the accompanying drawing the preferred form of the invention has been shown.

In said drawingsl Figure l is a side elevation of the trolley.

Fig. 2 is a plan view thereof.

F ig. 3 is a front elevation.

Referring to the figures by characters of reference l designates the pole of the trolley, the same being provided at its upper end withA a rearwardly and upwardly curved arm 2 providing a bearing for the stem 3 of a yoke or harp 4. A trolley wheel of ordinary construction is journaled in this harp, .as indicated at 5. An arm 6 is secured to the stem 3 and extends downwardly, the free end of this arm being connected by a spring 7 to the pole l so that the spring tends to holdv the arm normally extended downwardly with the wheel 5 in b proper position. Y

Arranged at the upper end of the pole at its point of junction with the arm 2 are oppositely extending upwardly curved horns or guard fingers 8 concentric with the axis of rotation of the harp 4 and extending close to the periphery of the wheel 5. Thus, when viewed in side elevation, the horns extend upwardly past the margin of the wheel 5 and, obviously should the forwardly moving trolley jump from the trolley wire, these horns or fingers 8 will prevent the cross or stay wire from passing between the wheel 5 and the arm 2. As the horns 8 are' arranged concentric with the axis of rotation of the harp 4, lit will be noted that they operate just as eiiiciently no matter to whaty positionthe harp 4 may be rotated. Should the harp be turned out of normal position, the spring 7 will tend to restore it to normal position as will be obvious.

A signal lamp 9 is mounted upon the lowerend of the chamber 3, the rear half of this lamp being preferably red while the front h alf is preferably white. Thus the lamp will serve as a danger signalto a car approaching it from the rear.v The usual trolley rope, indicated at 10, is connected `to the upper end of the pole l for thel purpose of manipulating it.-

What is claimed is p, l. In a trolley the combination with a pole and an arm extending' from the endv thereof and offset relative thereto, of a Patented May 17, 1921.

harp mounted to rotate on andA supported by the arm, a trolley wheel journaled within the harp, oppositely extending guard fingers upon the pole and concentric with the axis of rotation of the harp, the ends of the fingers normally extending past the periphery of the Wheel, an arm mounted to swing with the harp, means forholding the harp and lwheel in a' predetermined position relative to the pole.

2. The combination with arm offset from one end thereof, of a harp journaled within the arm, a trolley wheel carried by the harp, oppositely extending arcuateguard fingers upon the upper end of a pole and anv the pole and concentric with thev axis fof rotation of the harp, the ends of the fingers normally lapping the sides ofthe wheel, a yieldingly held arm mounted for movementl to and movable with the harp.

In a trolley the combination with a vwith theharp, and a signal lamp connected` pole of a harp mounted to rotate on and In Witness that I claim the `foregoing as supported by the arm, a trolley Wheel jourmy own, I have hereto alixed my signature na ed Within the harp, and oppostely exin the presence of two Witnesses.

tending guard fingers upon the pole and con- GEORGE B. NUSSBAUM. 5 centric With the aXis of rotation of the harp, Witnesses:

the ends of the lingers normally extending S. W. SELDNER,

past the periphery of the Wheel. JOSEPH W. RIEKER. 

